Rivers and flooding in Montana
274 river gauges the National Weather Service watches in Montana. Each has its forecast, flood stages and impacts, and its crest history.
Flood outlook
Significant river flooding over the next five days, and each gauge’s chance of flooding over the next three months.
No significant river flooding is outlined in Montana in the next five days.
Most likely to flood, September to November
- Beaver Creek (MT) near Hinsdale7% chance of minor flooding
- Milk River near Glasgow6% chance of minor flooding
- Milk River at Nashua5% chance of minor flooding
- Milk River near Saco5% chance of minor flooding
- Bitterroot River at Bell Crossing near Victor-99900% chance of major flooding
- Bitterroot River near Darby-99900% chance of major flooding
- Clark Fork River at Deer Lodge-99900% chance of major flooding
- St. Regis River near St. Regis-99900% chance of major flooding
- Stillwater River at Lawrence Park at Kalispell-99900% chance of major flooding
- Thompson River near Thompson Falls-99900% chance of major flooding
- Whitefish River near Kalispell-99900% chance of major flooding
11 of the 77 gauges the River Forecast Centers forecast in Montana have a stated chance of flooding in this period.
Badger Creek
Battle Creek
- Battle Creek at Consul 1SSWNo flood stages set
- Battle Creek at McKinnon Ditch nr Consul 3NNENo flood stages set
- Battle Creek at Nashlyn Canal nr Consul 5SWNo flood stages set
- Battle Creek at Richardson Ditch nr Consul 5NNWNo flood stages set
- Battle Creek at Wilsons Weir nr Consul 12NNWNo flood stages set
Battle Creek (North-central MT)
Beaver Creek (MT)
Beaverhead River
Belt Creek
Big Hole River
- Big Hole River at Big Lake Creek at WisdomNo flood stages set
- Big Hole River at bl Hamilton Ditch nr Twin BridgesNo flood stages set
- Big Hole River at GlenNo flood stages set
- Big Hole River at JacksonNo flood stages set
- Big Hole River at Jackson at Miner CreekNo flood stages set
- Big Hole River at Maiden Rock near DivideNo flood stages set
- Big Hole River at MelroseBelow flood stage
- Big Hole River at Mudd Creek near WisdomNo flood stages set
- Big Hole River at Spring Creek near JacksonNo flood stages set
- Big Hole River at Wise RiverNo flood stages set
Big Muddy Creek
Big Sandy Creek (MT)
Big Spring Creek (MT)
Bighorn River
Birch Creek (MT)
Bitterroot River
Blackfoot River
Blacktail Creek
Boulder Creek
Boulder River
Boulder River (Central MT)
Box Elder Creek
Canyon Creek
Clark Fork River
Clarks Fork of the Yellowstone
Clear Creek (North-central MT)
Cottonwood Creek
Cut Bank Creek
Dearborn River
East Boulder River
East Fork Poplar River
East Gallatin River
East Rosebud Creek
Fisher River
Flathead Lake
Flathead River
Flatwillow Creek
Frenchman Creek (MT)
Gallatin River
Grasshopper Creek
Grinnell Creek
Hanging Woman Creek
Hungry Horse Reservoir
Hyalite Creek
Jefferson River
Judith River
Kelly Creek
Kootenai River
Lake Creek (MT)
Lake Koocanusa
Little Beaver Creek
Little Bighorn River
Little Blackfoot River
Little Prickly Pear Creek
Lodge Creek
- Lodge Creek at McRae Creek at International BoundaryBelow flood stage
- Lodge Creek at Middle Ck abv Lodge Ck nr Willow Creek 8NWNo flood stages set
- Lodge Creek at on Middle Ck at Sask border nr Elkwater 19SWNo flood stages set
- Lodge Creek at on Middle Ck blo Middle Ck Res nr Consul 20 WNWNo flood stages set
- Lodge Creek at on Middle Ck nr Govenlock near Consul 14 WSWReading out of date
- Lodge Creek at Spangler DitchNo flood stages set
Lodge Grass Creek
Madison River
- Madison River at CameronNo flood stages set
- Madison River at Ennis Lake near McAllisterReading out of date
- Madison River at GraylingNo flood stages set
- Madison River at Hebgen Dam near West YellowstoneNo flood stages set
- Madison River at Kirby Ranch near CameronNo flood stages set
- Madison River at Powerplant near McAllisterNo flood stages set
- Madison River at West YellowstoneNo flood stages set
Marias River
Middle Fork Flathead River
Milk River
- Milk River at Del Bonita nr Cut BankReading out of date
- Milk River at DodsonBelow flood stage
- Milk River at Eastern Crossing nr RudyardBelow flood stage
- Milk River at Fresno Reservoir near HavreNo flood stages set
- Milk River at GlasgowBelow flood stage
- Milk River at HarlemBelow flood stage
- Milk River at HavreBelow flood stage
- Milk River at MaltaBelow flood stage
- Milk River at Milk River ABNo flood stages set
- Milk River at NashuaBelow flood stage
- Milk River at Nelson ReservoirNo flood stages set
- Milk River at SacoBelow flood stage
- Milk River at TampicoBelow flood stage
Mill Creek
Missouri River
- Missouri River at Canyon Ferry ReservoirBelow flood stage
- Missouri River at CascadeNo flood stages set
- Missouri River at CulbertsonBelow flood stage
- Missouri River at Fort BentonBelow flood stage
- Missouri River at Fort Peck ReservoirNo flood stages set
- Missouri River at Great FallsNo flood stages set
- Missouri River at Great FallsReading out of date
- Missouri River at Great Falls Central Ave BridgeReading out of date
- Missouri River at Hauser Dam near HelenaNo flood stages set
- Missouri River at Helena Valley ReservoirBelow flood stage
- Missouri River at Holter Dam near Wolf CreekNo flood stages set
- Missouri River at LanduskyBelow flood stage
- Missouri River at TostonBelow flood stage
- Missouri River at UlmBelow flood stage
- Missouri River at VirgelleBelow flood stage
- Missouri River at Wolf PointBelow flood stage
Muddy Creek
Musselshell River
- Musselshell River at HarlowtonBelow flood stage
- Musselshell River at LavinaBelow flood stage
- Musselshell River at MartinsdaleNo flood stages set
- Musselshell River at Martinsdale Supply CanalReading out of date
- Musselshell River at MosbyBelow flood stage
- Musselshell River at MusselshellBelow flood stage
- Musselshell River at RoundupBelow flood stage
- Musselshell River at ShawmutBelow flood stage
N Fork Musselshell River
near Van Norman
North Fork Flathead River
North Fork Milk River
North Fork Sun River
Otter Creek
Pass Creek
Peoples Creek
Poplar River
Powder River (WY-MT)
Prickly Pear Creek
Prospect Creek
Pryor Creek
Pumpkin Creek
Red Lodge Creek
Red Rock Creek
Red Rock River
Redwater River (MT)
Rock Creek
Rock Creek (NE MT)
Rock Creek (South Central MT)
Rosebud Creek
Ruby River
Saint Mary Canal
Saint Mary River
Shields River
Silver Bow Creek
Smith River (MT)
South Fork Flathead River
South Fork Jocko
South Fork Milk River
South Fork Musselshell
South Fork Sun River
St. Regis River
Stillwater River
Stillwater River (South Central MT)
Sun River
- Sun River at AugustaBelow flood stage
- Sun River at AugustaNo flood stages set
- Sun River at Diversion Dam near AugustaNo flood stages set
- Sun River at Duck Creek abv Simms Ashuelot Brdg nr SimmsReading out of date
- Sun River at Elk Creek near AugustaReading out of date
- Sun River at FairfieldReading out of date
- Sun River at Gibson Dam near AugustaReading out of date
- Sun River at Mill Coulee Creek nr Sun RiverReading out of date
- Sun River at Pishkun Reservoir near AugustaBelow flood stage
- Sun River at SimmsBelow flood stage
- Sun River at VaughnBelow flood stage
- Sun River at Willow Creek ReservoirBelow flood stage
Swan River
Sweet Grass Creek
Swiftcurrent Creek
Tank Coulee
Tenmile Creek (MT)
Teton River
Thompson River
Tobacco River
Tongue River
- Tongue River at AshlandNo flood stages set
- Tongue River at Ashland at Brandenberg BridgeNo flood stages set
- Tongue River at Birney Day School near BirneyBelow flood stage
- Tongue River at DeckerNo flood stages set
- Tongue River at Miles CityBelow flood stage
- Tongue River at T & Y Diversion Dam near Miles City (Closed Gauge)Out of service
- Tongue River at Tongue River ReservoirNo flood stages set
Two Medicine River
Warm Springs Creek
West Fork Bitterroot River
West Fork Rock Creek
West Rosebud Creek
Whitefish River
Willow Creek
Willow Creek (Southwest MT)
Wise River
Yaak River
Yellowstone River
- Yellowstone River at BillingsBelow flood stage
- Yellowstone River at Corwin SpringsBelow flood stage
- Yellowstone River at ForsythBelow flood stage
- Yellowstone River at GlendiveBelow flood stage
- Yellowstone River at Huntley Diversion DamOut of service
- Yellowstone River at LivingstonBelow flood stage
- Yellowstone River at Miles CityBelow flood stage
- Yellowstone River at SidneyBelow flood stage
Sources
Gauges, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow from the U.S. Geological Survey.